Full list of all 75 The Elder Scrolls V: Skyrim achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there are 3 DLC packs containing 25 achievements.
Returned the Thieves Guild to its former glory
Learn 20 shouts
Collect 15 Daedric Artifacts
Complete "Darkness Returns"
Complete "Glory of the Dead"
Escape from jail
Have 100,000 gold
Reach Level 50
Become a member of the Circle
Chop wood, mine ore, and cook food
Join the Companions
Complete "Hail Sithis!"
Get a skill to 100
Find 13 Standing Stones
Complete "Bound Until Death"
Read 50 Skill Books
Join the Dark Brotherhood
Capture Solitude or Windhelm
Clear 50 dungeons
Complete 10 side quests
Capture Fort Sungard or Fort Greenwall
Complete "Dragonslayer"
Complete "The Fallen"
Complete "Elder Knowledge"
Absorb 20 dragon souls
Complete "The Eye of Magnus"
Complete "Revealing the Unseen"
Get married
Join the Stormcloaks or the Imperial Army
Successfully persuade, bribe, and intimidate
Discover 100 Locations
Complete "Alduin's Wall"
Reach Level 25
Complete "Diplomatic Immunity"
Acquire a Daedric Artifact
Learn all three words of a shout
Join the Thieves Guild
Join the College of Winterhold
Complete 50 Misc Objectives
Complete "The Way of the Voice"
Buy a house
Make a smithed item, an enchanted item, and a potion
Reach Level 10
Absorb a dragon soul
Reach Level 5
Complete "Bleak Falls Barrow"
Select a Standing Stone blessing
Complete "Unbound"
Pick 50 locks and 50 pockets
Bounty of 1000 gold in all nine holds
Own a house in Raven Rock
Arrive on Solstheim
Complete "The Temple of Miraak"
Complete "The Path of Knowledge"
Complete "At the Summit of Apocrypha"
Learn all 3 words of Dragon Aspect
Learn the secrets of 5 Black Books
Craft an item out of Stalhrim
Tame and ride 5 dragons
Discover 30 locations on the island of Solstheim
Acquire 11 werewolf perks
Complete "Lost to the Ages"
Complete "Kindred Judgment"
Use the special power of Auriel's Bow
Learn all three words of Soul Tear
Complete "Beyond Death"
Complete "Awakening"
Change your face
Acquire 11 vampire perks
Defeat a Legendary Dragon
Build three houses
Buy three plots of land
Build three wings on a house
Buy a plot of land
Adopt a child